Sally is a young woman living two lives: a calmly librarian by day, and a brutal serial killer by night where she randomly targets any man or woman whom even slightly upsets her. Sally lives with her reclusive, transvestite younger brother Rudy whom assists her with the killings. Both Sally and Ruby were traumatized as children when both of them witnessed three lunatics murder their mother and father before they, with 'Daddy's' help, killed the three murderous psychos.

When a small research plane carrying a group of science students and their professor crash-lands in the middle of nowhere, the survivors go to a nearby farmhouse to look for help but soon find themselves besieged by giant mutant spiders.

Trapped in an abandoned schoolhouse with an evil they helped create, but cannot defeat, the students are ill prepared for their last lesson...in terror!

Zombie elves are unleashed on a tabloid writer who is determined to uncover a Christmas conspiracy.